Rocks and Minerals Review

The breakdown of rock due to rain, wind, ice, sunlight, and plants

• erosion

• weathering

• compaction

• cementation

Color of a mineral when it is in powdered form

• opaque

• luster

• streak

• dust

Measure of how easily a mineral can be scratched

• streak

• luster

• hardness

• cleavage

How minerals or crystals break along clean lines

• streak

• hardness

• cleavage

• strata

A non-living material found naturally on earth, with definite chemical composition and a crystalline structure

• sediment

• property

• mineral

• rock

Rock that is formed when layers of sediment are deposited, compacted, and cemented over long periods of time

• igneous rock

• metamorphic rock

• sedimentary rock

• molten rock

Process that describes how rocks are formed, broken down, and are changed over time

• cementation

• compaction

• weathering

• rock cycle

The process in which sediment is carried away or moved from one place to another by water, wind, ice, or gravity

• compaction

• erosion

• weathering

• rock cycle

Rock that is formed or changed when existing rocks are exposed to intense heat and pressure

• igneous rock

• metamorphic rock

• sedimentary rock

• molten rock

Molten rock that has erupted onto Earth's surface

• magma

• sediment

• lava

• igneous